13775213 has 4 divisors (see below), whose sum is σ = 13875900. Its totient is φ = 13674528.

The previous prime is 13775197. The next prime is 13775233. The reversal of 13775213 is 31257731.

13775213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31257731 = 5147 ⋅6073.

It can be written as a sum of positive squares in 2 ways, for example, as 6360484 + 7414729 = 2522^2 + 2723^2 .

It is a cyclic number.

It is not a de Polignac number, because 13775213 - 2⁴ = 13775197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13775233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50138 + ... + 50411.

It is an arithmetic number, because the mean of its divisors is an integer number (3468975).

Almost surely, 2^13775213 is an apocalyptic number.

It is an amenable number.

13775213 is a deficient number, since it is larger than the sum of its proper divisors (100687).

13775213 is a wasteful number, since it uses less digits than its factorization.

13775213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100686.

The product of its digits is 4410, while the sum is 29.

The square root of 13775213 is about 3711.4974067080. The cubic root of 13775213 is about 239.7173350403.

The spelling of 13775213 in words is "thirteen million, seven hundred seventy-five thousand, two hundred thirteen".